My house construction work is going on which is at the plinth level right now and window installation is next. The drawing room size is 10'0" * 14'0". Both sides are along the roads. The 10'0" side is the front side facing north and the 14'0" side is along the 9'0" wide porch facing east . What should be the Sill height of the windows for both walls as sofas going to be place in front of the?. What should be the Sill height of the window of adjoining dinning room facing east along the road with dinning table coming in front of it?